Protection Relay
Protection Relay
086 Low Voltage Brief Catalogue P -
P-043
Low Voltage Brief Catalogue
NJB1-S Time Delay Relay
▪ NJB1-S Series Time Delay Relay is applicable for controlling circuit @ A.C. 50Hz/ 60Hz, up to 380V rated supply voltage and up to D.C.24V supply voltage as monitoring protection element to make or break circuit according to preset value. ▪ NJBI-S time-delay relay is used in controlling circuit as time delay element to make or break circuit according to preset time.
NJB1-S
NJBK10 Motor Protection Relay ▪ NJBK10 motor protection relay (hereinafter referred to as protector) is applicable for overload, phase-failure and three-phase unbalance protection of AC motor @A.C.50Hz, less than AC690V rated insulation voltage and 1A ~ 200A rated operating current for its continuous working or discontinuous working. Protector and AC contactor are generally used cooperatively. ▪ This product meets the requirements of IEC 60947- 4-1
NJBK10
NJBK7 Motor Protection Relay
▪ Standard: IEC 60947-4-1 ▪ Rating current: 1A~800A, Rogowski coil is applied for high curren.t ▪ Rating control voltage: 50Hz AC220V, AC230V, AC240V, AC380V, AC400V, AC415V. ▪ Trip class: 5, 10A, 10, 20, 30. ▪ Various motor protection functions, with RS485 interface and 4mA-20mA analog transmission interface for communication and monitor. ▪ With LED display and setting button, smaller size can save installation space. ▪ Can operate for auto-coupling or star-delta start.
NJBK7
NJBK6 Motor Protection Relay ▪ NJBK6 series motor protection relay is used to provide overload, phase failure, three-phase current unbalance and locked rotor protection for AC motors with a frequency of AC 50Hz, a rated insulation voltage of below 690V and a rated operational current of 1A~36A that operate continuously or intermittently. ▪ Standards: IEC 60947-4-1
NJBK6
NJBK1 Series Motor Protector ▪ Standards compliant: GB 14048.4, IEC 60947-4-1 ▪ Rated control supply voltage: 50Hz AC380V, AC220V ▪ Maximum rated working current up to 400A ▪ Trip grade: Level 5, level 10A, level 10, level 20 and level 30 adjustable
▪ Overload, open phase and three-phase current imbalance and other protection functions ▪ Nixie tube displays the motor working condition and the maximum phase current value ▪ Linear scale knob adjustment ▪ With test/reset buttons ▪ Pluggable terminal blocks ▪ With the function of protection contact will release with no control supply voltage
NJBK1
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